Antenna



FIG. 1 is a top, front perspective view of an antenna;

FIG. 2 is a bottom, back perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a left-side view thereof;

FIG. 6 is a right-side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The dashed broken lines depict portions of the antenna and bracket that form no part of the claimed design.

Any portion of the antenna or bracket that is not seen in the figures may not be visible during normal use and these portions do not form a part of the claimed design. Therefore, a view disclosing such unseen portions is not included. However, any unseen portion of the antenna or bracket is substantially unornamented beyond the features shown in the figures. 

CLAIM The ornamental design for an antenna, as shown and described. 